update release gha trigger

Author: hobu

.github/workflows/release.yml

@@ -1,6 +1,15 @@
 name: Release
 
 on:
+  workflow_dispatch:
+  pull_request:
+    paths:
+      - '.github/workflows/release.yml'
+  push:
+    branches:
+      - main
+    paths:
+      - '.github/workflows/release.yml'
   release:
     types:
       - published